This study examines the effects of embedding human personality charact
eristics into the computer interface. Eighty university students were
taught how to use Hypercard on the Macintosh computer in a 2x2x2 facto
rial design as follows: personality of the interface (extroverted/intr
overted), x subjects' personality (extroverted/introverted), x task st
rength (low and high). The results indicated that subjects do perceive
computer software as having personalities similar to those of humans.
A significant interaction existed between interface designs (extrover
ted vs. introverted) and user type (extroverted vs introverted people)
. Introverted users performed faster with introverted software interfa
ces than with the extroverted interfaces. There were no differences in
the performance time of extroverted subjects between the two interfac
es. The study results also indicated that task performance for extrove
rted and introverted subjects was not different for high task strength
tasks but extroverted subjects performed significantly faster on low
task strength than did the introverted subjects.